DragonFly (DF) series spectrometers are low cost near infrared models which combine OtO Photonics' expertise in spectrometer cavity design, software and manufacturing with Texas Instruments' Digital Light Processing technology (DLP®).
DLP uses Micro-Electro-Mechanical Systems (MEMS) technology to produce an array of micromirrors which are used the direct portions of the spectrum from a diffraction grating to a single point photodiode.
This innovative arrangement provides an extremely compact form-factor with an overall size (including connectors and control boards) of only 108cm³ for versions with uncooled photodiodes and 184cm³ for models with two-stage Peltier cooling.
Despite its compact form-factor DragonFly features an extremely rigid optical bench ensuring a platform with excellent thermal, humidity, shock and vibration stability.
DragonFly is offered with a choice of ambient temperature 1mm active area InGaAs photodiode for operation over 900-1700nm (DF1514) alongside 2-stage TE-cooled models with standard InGaAs (DF1914, 900-1700nm) as well as extended-response models with cut-off wavelengths of 2050nm (DF1924) and 2280nm (DF1934).
| Description | DF1514 | DF1914 | DF1924 | DF1934 |
| Sensor | InGaAs | 2-stage TE-cooled InGaAs |
2-stage TE-cooled Extended response InGaAs |
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| Spectral Range | 900 - 1700nm | 900 - 1700nm | 1250 - 2050nm | 1340 - 2280nm |
| Dynamic Range |
N/A |
N/A | N/A | N/A |
| SNR | 7000 | N/A | 7000 | 7000 |
| Slit Width | 25 µm | |||
| Resolution | <10nm across full spectral range | |||
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Stray Light |
<0.2% | |||
| Dimensions (mm) Weight |
71.5 x 57.0 x 25.0 ~77 g |
76.7 x 59.9 x 40.0 ~120 g |
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| Scan Mode | Column / Hadamard / Slew | |||
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DragonFly product brief |
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DragonFly data sheet |
Power and communication with DF-Series spectrometers is via high-speed micro-USB with the addition of 6 user-programmable digital I/Os.
The inclusion of OtO's SpectraSmart software ensures that DragonFly users can be up-and-running within minutes whilst the availability of a Software Development Kit for Windows and example code for Linux facilitates integration into a broad range of OEM instruments.
For more information on DragonFly and to discuss your application, please Contact Us.
